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ITsVISTA KB-Link: KB978829

The CTRL and ALT keys in a Terminal Service session get stuck when you unlock a local computer

Consider the following scenario:

  • On a local computer, you log on to a remote computer through a Remote Desktop Connection (RDC) session.
  • You press CTRL+ALT+DELETE to lock the local computer.
  • You unlock the local computer from an idle state after a period of inactivity.
  • You return to the Terminal Services session.

In this scenario, the Terminal Services session behaves as if the CTRL and ALT keys are pressed.

For example, after you return to the Terminal Services session, you press the DELETE key while you are working. In this example, the Terminal Services session assumes that you have just pressed CTRL+ALT+DELETE.

Note: This issue occurs if the following conditions are true when the computer is locked:

  • The local area network is disconnected and then reconnected.
  • The Terminal Services session requires to be reconnected.
There is a download that resolves this issue. See Hotfixes for details.
32-bit Download: Contact Microsoft
64-Bit Download: Contact Microsoft

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB978829.

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